KR101728312B1 - Method and device for detecting the activation of a coupling in a damper actuator - Google Patents

Method and device for detecting the activation of a coupling in a damper actuator Download PDF

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Publication number
KR101728312B1
KR101728312B1 KR1020127003055A KR20127003055A KR101728312B1 KR 101728312 B1 KR101728312 B1 KR 101728312B1 KR 1020127003055 A KR1020127003055 A KR 1020127003055A KR 20127003055 A KR20127003055 A KR 20127003055A KR 101728312 B1 KR101728312 B1 KR 101728312B1
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KR
South Korea
Prior art keywords
coupling
lead
drive motor
detecting
actuation
Prior art date
Application number
KR1020127003055A
Other languages
Korean (ko)
Other versions
KR20120052959A (en
Inventor
마르쿠스 코베르스테트
하리 오이르소우브
무라트 데미어
Original Assignee
로베르트 보쉬 게엠베하
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Filing date
Publication date
Priority to DE200910028249 priority Critical patent/DE102009028249A1/en
Priority to DE102009028249.1 priority
Application filed by 로베르트 보쉬 게엠베하 filed Critical 로베르트 보쉬 게엠베하
Priority to PCT/EP2010/060767 priority patent/WO2011015477A1/en
Publication of KR20120052959A publication Critical patent/KR20120052959A/en
Application granted granted Critical
Publication of KR101728312B1 publication Critical patent/KR101728312B1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00Doors
    • B60J5/10Doors arranged at the vehicle rear
    • B60J5/101Doors arranged at the vehicle rear for non-load transporting vehicles, i.e. family cars including vans
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/40Safety devices, e.g. detection of obstructions or end positions
    • E05F15/41Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/60Power-operated mechanisms for wings using electrical actuators
    • E05F15/603Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/20Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/214Disengaging means
    • E05Y2201/216Clutches
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/20Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/23Actuation thereof
    • E05Y2201/232Actuation thereof by automatically acting means
    • E05Y2201/236Actuation thereof by automatically acting means using force or torque
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2400/00Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/30Electronic control of motors
    • E05Y2400/32Position control, detection or monitoring
    • E05Y2400/322Position control, detection or monitoring by using absolute position sensors
    • E05Y2400/326Position control, detection or monitoring by using absolute position sensors of the angular type
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50Mounting methods; Positioning
    • E05Y2600/56Positioning or pre-mounting
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/74Specific positions
    • E05Y2800/742Specific positions abnormal
    • E05Y2800/748Specific positions abnormal end
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/50Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/546Tailgates

Abstract

The present invention relates to a method for detecting the actuation of a coupling 8 in a lead actuator wherein the coupling 8 engages the drive motor 5 with the adjustable lead 3, If the force or torque acting on the lid 3 exceeds the maximum value, the coupling between the drive motor 5 and the lid 3 is cut off and the next step, i.e., the adjustment speed, Detecting an indication of the rotational speed of the drive motor 5 in particular; Determining an adjustment speed slope, in particular a rotational speed slope, by an indication of the adjustment speed; And detecting the actuation of the coupling (8) by determining whether the determined slope exceeds or does not exceed a predefined slope threshold value, for detecting the actuation of the coupling (8) in the lead actuator will be.

Description

[0001] The present invention relates to a method and apparatus for detecting an operation of a coupling in a lead actuator,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead actuator, such as a trunk lid and a door of an automobile,

Lead systems for electrical opening and closing are used in automobiles, trunk systems or doors. The lead is opened by operating the operating member in the passenger compartment of the automobile, for example, by operating the switch or by operating the electric motor by the wireless operating member. The electric motor is connected to each lead (vehicle door, trunk lid, etc.) through a spindle mechanism or the like to provide a suitable speed and force for the opening process.

The closing process can be performed by a corresponding operating member or a wireless operating member or by pressing the lid in the closing direction. Further, when the lid is pressed in the closing direction, the corresponding rotation of the electric motor causes the movement of the lid, and the electric motor thereby generates the generator current. The generated generator current causes the closing process so that the electric motor is controlled for closing the lid and the lid is correspondingly closed.

Generally, when a force is applied to the closing member, the electric motor is rotated. If the threshold is exceeded when a force is applied to the closure member, for example if the user consumes a large force to open and close the lid, or if the lid encounters resistance during exercise driven by the electric motor, A coupling, particularly a friction clutch, is provided between the electric motors, and the friction clutch operates from the action of a certain force (exceeding the operating threshold). The actuation of the coupling causes the movement of the lead to be separated from the movement of the electric motor. In other words, the pressure fitting engagement between the lead and the electric motor is blocked during operation of the coupling in the lead actuator.

In the case of an electrically driven lead system, a function is usually implemented in which the user can program the maximum open position of the lead. To ensure that the maximum open position is not exceeded, the position of the leads must always be known in the control device controlling the lead system. This is generally possible by determining the absolute rotor position of the electric motor and by assigning it to the lead position. However, the operation of the coupling causes the position information of the lead to disappear in a lead system in which the position of the lead is determined only through the position of the rotor of the electric motor, not directly. Thus, in order to determine when the position information can no longer be used to determine the lead position, it is necessary to detect the operating point of the coupling.

It is an object of the present invention to provide a method and apparatus for detecting the operation of a coupling in a lead system.

This object is achieved by a method according to claim 1 and an apparatus according to another independent claim.

Other preferred embodiments are set forth in the dependent claims.

According to a first aspect, a method for detecting operation of a coupling in a lead actuator is provided. In this case, since the coupling engages the drive motor with the adjustable lead, the lead can be adjusted by the drive motor, and if the force or torque acting on the lead exceeds the maximum, the coupling between the drive motor and the lead is blocked . The method

Detecting an indication of the regulation speed, in particular of the rotational speed of the drive motor;

Determining a controlled velocity gradient, in particular a rotational velocity gradient, by an indication of said controlled velocity;

And detecting the actuation of the coupling by determining whether the determined slope exceeds or is below a predetermined slope threshold value.

The idea of the present invention is to detect when the transmission of force to the lead is blocked by operating the coupling by simple monitoring of the regulation speed of the drive motor, for example the rotational speed of the electric motor. When a force is applied to the lead, for example, by manual actuation or by collision of the lead with the resistance, the coupling operates after overcoming the static friction, and the force transmission through the coupling is interrupted or significantly reduced. In operation of the coupling, the regulation speed of the drive motor generally changes, in particular the rotational speed of the electric motor, because the load torque changes very quickly. This is generally independent of whether the rotational speed of the electric motor is regulated or not. If an adjustment speed slope exceeding the slope threshold is detected, the operation of the coupling may be assumed. In this case, for example, the function of the lead system to reach the maximum open height defined by the user may not be activated.

Further, when the operation of the coupling is detected, the control of the drive motor can be allowed only in the closing direction of the lid.

If the coupling is not operated, the position of the lead can be detected by the position of the rotor of the drive motor.

According to the embodiment, the position of the lead during movement of the lead can be limited to the maximum opening position.

Specifically, when the operation of the coupling is detected, the lead is moved to the end position in the closing direction, and if the lead reaches the end position, the position of the lead is assigned to the rotor position of the drive motor.

In accordance with another aspect, there is provided an apparatus for detecting the actuation of a coupling in a lead actuator, particularly in an automobile. The device

- drive motor;

The coupling between the drive motor and the lead is designed so that the lead can be adjusted by the drive motor by combining the drive motor and the adjustable lead, and when the force or torque on the lead exceeds a maximum value, A coupling designed to shut off;

- to detect an indication of the regulation speed of said drive motor,

- to determine a regulated speed slope, in particular a rotational speed slope, by an indication of said regulated speed,

- to detect the actuation of the coupling by determining whether the determined slope exceeds or falls below a predetermined slope threshold value

And includes a designed control device.

According to another aspect, there is provided a computer program product including the program code for implementing the method when the program code is executed in a data processing unit.

The present invention provides a method and apparatus for detecting the actuation of a coupling in a lead system.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
1 is a schematic diagram of a lead system;
2 is a schematic view of a rotational speed profile during operation of coupling by the action of an external force on the leads;

1 shows a rear portion of a vehicle 1 having a trunk 2 that can be closed by a trunk lid 3. Fig. The luggage compartment lid 3 is opened and closed by the electric drive system 4. [

The drive system 4 comprises an electric motor 5 and the electric motor 5 is mechanically connected to the transmission 6. In this embodiment, the rotational motion of the output shaft 11 of the electric motor 5 is converted into translational motion of the rod 7 in the transmission 6, and the rod is fixed to the luggage compartment lid 3. Since the spindle 10 is moved in the cylinder 9 of the transmission 6, the overall length of the rod 7 changes. By the translational movement of the rod 7 or the spindle 10, the trunk lid 3, which is pivotally suspended, can be opened and closed.

A coupling (8), in particular a friction clutch, is arranged between the electric motor (5) and the transmission (6). The coupling 8, like the conventional coupling, is embodied in two coupling plates 12, for example, in which the coupling is biased against each other by force to transmit torque by static frictional forces. When the difference in the torque acting on the coupling plate through the drive shaft or the output shaft exceeds the reference value, the coupling is operated and the coupling plates are frictioned with each other, so that the rotational speeds of the drive shaft and the output shaft are different. The coupling 8 is designed to operate when a sufficient magnitude of actuation force in the direction of movement of the rod 7, i. E. Force acting on the rod, or when the actuation moment acting on the coupling plate is large enough.

In an alternative embodiment, the coupling may also be provided between the transmission 6 and the rod 7. In this case, the coupling may be a plate coupling, and when the two plates of the plate coupling are pressed against each other, the plates are moved relative to each other when the resulting static friction exceeds a reference value, do.

The drive system 4 is controlled by a control device 15 via an electrically suitable supply line 16. [ The control device 15 is connected to an operating member (not shown), and the user can indicate whether the boot lid 3 should be opened or closed by the operating member. Further, the control device 15 detects the position signal PS indicating the absolute position of the rotor of the electric motor 5 from the electric motor 5 through an appropriate signal line. The position signal PS may be provided by a position sensor (not shown) disposed in the electric motor 5. [ The position signal PS is used to detect the actual position of the boot lid 3. This is done by the prescribed allocation of the actual position of the rotor of the electric motor 5 relative to the position of the luggage compartment lid 3. To achieve this, a prescribed fixed connection between the rotor of the electric motor 5 and the position of the luggage compartment lid 3 is required.

Often, in the control device 15, a function is realized in which the trunk lid 3 reaches only a predetermined maximum position by the user when the trunk lid 3 is opened. As a result, it is possible to prevent the luggage compartment lid 3 from bumping into a resistance, for example, a garage cover. In the electrically driven opening process, the electric motor is stopped at its maximum position.

However, when the coupling 8 is operated and disposed between the rotor of the electric motor 5 and the luggage compartment lid 3 in which the absolute position is detected, information on the position of the luggage compartment lid 3 disappears. The function of restricting the opening process up to the maximum position can thus no longer be carried out because the coupling 8 has been activated and the position information PS is no longer being moved to one position of the trunk lid 3 Lt; RTI ID = 0.0 > 1 < / RTI >

To recalibrate the luggage compartment lid 3, the luggage compartment lid must be moved to a defined position or completely closed. The prescribed position must be detectable. That is, for example, the fully closed state of the luggage compartment lid 3 must be detectable by an increase in current flowing through the electric motor 5, for example, when the luggage compartment lid 3 is blocked by the end stopper. Also, the end stopper can be signaled to the control device 9 by an appropriate sensor.

The calibration process should not be conducted frequently for comfort. It is detected that the coupling has been activated, preferably the calibration is performed only at the time of coupling. To this end, the rotational speed of the electric motor 5 is monitored, for example, by evaluation of the position signal PS, and the operation of the coupling 8 is estimated by the change of the rotational speed signal. The information on the rotational speed can be derived from the detected position information in such a manner that the positional fluctuation is determined over a prescribed time window, for example. By deriving the information of the rotational speed over time, the rotational speed fluctuation can be detected.

Due to the inertia of the whole system, i.e. the mass of the luggage compartment lid 3, the moment of inertia of the electric motor 5 and the transmission 6, and the inertia of the rod 7, But the rotation speed fluctuation does not exceed the specific rotation speed tilt value. When the trunk lid 3 hits the resistance or a force exceeding the force in the manual operation of the trunk lid 3 is applied to the trunk lid 3, (8) can be operated. The operating limit at which the coupling 8 is operated is selected such that the manual actuation of the boot lid 3 does not automatically cause the operation of the coupling 8 to allow manual adjustment of the boot lid 3 do. Only when a large force is generated, for example, when the trunk lid 3 hits the resistance, the coupling 8 is operated for safety.

Operation is performed when the rotational speed of the electric motor 5 is rapidly changed. When the force acts on the trunk lid 3 in the operating direction of the electric motor 5, the electric motor 5 is first accelerated by the action of the force on the trunk lid 3; The coupling between the movement of the rear lid 3 and the rotational movement of the electric motor 5 during the operation of the coupling 8 is considerably reduced so that the torque caused by the transmission drops and the rotational speed suddenly decreases . The value of the slope of the rotational speed fluctuation exceeds the specific rotational speed slope threshold value and the operation of the coupling 8 can be estimated.

In the other case, if a force for restricting the driving motion of the electric motor 5 is applied to the luggage compartment lid 3, the electric motor 5 becomes slower at first until the coupling 8 is operated. After the operation of the coupling 8, the rotational speed suddenly becomes faster, and in this case the given rotational speed gradient exceeds the rotational speed gradient threshold.

Fig. 2 shows the rotational speed profile before and after the operation of this coupling 8 when the rotational speed of the electric motor 5 is regulated by regulation. Due to the large value of the rotational speed gradient after the coupling 8 is actuated, a great influence is exerted on the regulation, and this influence varies the regulation. This can be easily seen in FIG.

Further, after the detection of the operation of the coupling 8, the trunk lid 3 is controlled by the drive system 4 so that the maximum position, i.e., the open position, of the trunk lid 3 determined by the user is prevented from being exceeded It can only be moved in the direction of the closed position. As a result, damage to the boot lid 3 can be prevented.

The above-described method can basically be applied to an electrically operated opening mechanism, in which the lid can be moved before opening to open and close the opening.

3 leads
5 drive motor
8 Coupling
15 control device

Claims (10)

  1. A method for detecting operation of a coupling (8) in a lead actuator,
    Since the coupling 8 engages the drive motor 5 with the adjustable lead 3, the lead 3 can be adjusted by the drive motor 5 and the force acting on the lead 3 When the force or torque exceeds the maximum value, the coupling between the drive motor 5 and the lead 3 is cut off,
    - detecting data of the regulation speed of the drive motor (5);
    Determining a controlled velocity slope by means of data relating to said controlled velocity;
    - detecting the actuation of the coupling (8) by determining whether the determined slope exceeds or falls below a predetermined slope threshold value, characterized by detecting the operation of the coupling (8) in the lead actuator Lt; / RTI >
  2. 2. A method as claimed in claim 1, characterized in that when the actuation of the coupling (8) is detected, control of the drive motor (5) is only allowed in the closing direction of the lead (3) A method for detecting an operation.
  3. 3. A device according to claim 1 or 2, characterized in that the position of the lead (3) is detected via the position of the rotor of the drive motor (5) if the coupling (8) A method for detecting an operation of a coupling in an actuator.
  4. 4. A method according to claim 3, characterized in that the position of the lead (3) is limited to the maximum open position upon movement of the lead (3).
  5. 5. The apparatus according to claim 4, wherein, when the operation of the coupling (8) is detected, the lead (3) is moved in the closing direction until reaching the end position, and when the lead (3) Characterized in that the position of the lead (3) is assigned to the rotor position of the rotor of the drive motor (5).
  6. An apparatus for detecting operation of a coupling (8) in a lead actuator, the apparatus comprising:
    A drive motor 5;
    A power or torque acting on said lead (3) is designed such that said lead (3) can be adjusted by said drive motor (5) by combining said drive motor (5) and an adjustable lead A coupling 8 designed to cut off the coupling between the drive motor 5 and the lead 3 when the maximum value is exceeded,
    - to detect data of the regulation speed of the drive motor (5)
    - to determine a controlled velocity gradient by means of data relating to said controlled velocity,
    - to detect the actuation of the coupling (8) by determining whether the determined slope exceeds or falls below a predetermined slope threshold value
    Characterized in that it comprises a designed control device (15).
  7. And the program code for implementing the method according to claim 1 or 2 when the program code is executed in the data processing unit.
  8. The method according to claim 1,
    - detecting the data of the regulation speed of the drive motor (5) comprises detecting data of the rotation speed of the drive motor (5)
    Characterized in that the step of determining the controlled velocity slope by means of the data relating to said controlled velocity comprises the step of determining the rotational velocity gradient by means of the data relating to said controlled velocity, Way.
  9. 7. The apparatus according to claim 6, wherein the control device (15)
    - to detect data of the rotational speed of the drive motor (5)
    Characterized in that it is additionally designed to determine the rotational speed gradient by means of data relating to said regulation speed.
  10. 7. An apparatus as claimed in claim 6, characterized in that the device is a device for detecting the actuation of a coupling (8) in a lead actuator in a motor vehicle.

KR1020127003055A 2009-08-05 2010-07-26 Method and device for detecting the activation of a coupling in a damper actuator KR101728312B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE200910028249 DE102009028249A1 (en) 2009-08-05 2009-08-05 Method and device for detecting a release of a clutch in a damper drive
DE102009028249.1 2009-08-05
PCT/EP2010/060767 WO2011015477A1 (en) 2009-08-05 2010-07-26 Method and device for detecting the activation of a coupling in a damper actuator

Publications (2)

Publication Number Publication Date
KR20120052959A KR20120052959A (en) 2012-05-24
KR101728312B1 true KR101728312B1 (en) 2017-04-19

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Application Number Title Priority Date Filing Date
KR1020127003055A KR101728312B1 (en) 2009-08-05 2010-07-26 Method and device for detecting the activation of a coupling in a damper actuator

Country Status (7)

Country Link
US (1) US8843278B2 (en)
EP (1) EP2461994B1 (en)
JP (1) JP5345736B2 (en)
KR (1) KR101728312B1 (en)
CN (1) CN102470735B (en)
DE (1) DE102009028249A1 (en)
WO (1) WO2011015477A1 (en)

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KR20120052959A (en) 2012-05-24
WO2011015477A1 (en) 2011-02-10
JP5345736B2 (en) 2013-11-20
DE102009028249A1 (en) 2011-02-10
EP2461994A1 (en) 2012-06-13
CN102470735B (en) 2015-04-01
CN102470735A (en) 2012-05-23
US20120245800A1 (en) 2012-09-27
EP2461994B1 (en) 2013-03-27
JP2013501171A (en) 2013-01-10
US8843278B2 (en) 2014-09-23

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